First, I have a Galaxy S4 i9505 (4G), the problem does not affect my device, but the device's my cousin who is a Samsung Galaxy S4 i9500 (3G).
He recently purchased the unit from another person, the unit worked well, but had a small defect in the charging connector ...
He asked me to sell one of my cases and battery why his battery was apparently bad, why was not possible give loads on the battery, I managed to solve this problem.
The problem came when he asked me to update the device to Android 4.4.2 KitKat by several improvements, I downloaded the latest firmware available at SamMobile site and after that did the flash using Odin.
Knox had in 0x1 (the unit had been modified) and I read on some forums that night, that when doing upgrade directly from 4.2.2 version, especially XXUBMGA the EFS partition changes shape, thus having little network problem and signal.
Link : http://www.grupoandroid.com/topic/83400-modem-mg9-y-posteriores-modifican-la-efs/
My questions are, it is possible to resolve this situation? I read previously that the IMEI is restored from a backup made previously it is possible to recover the network signal, but made no backup of EFS ....
I also read a long time ago that it is impossible to downgrade to ROM's with lower versions if there Knox installed.
I did the update of Android 4.2.2 to 4.4.2 using Odin.
If possible downgrade, any of you can share the ROM XXUBMGA 4.2.2 for S4 i9500? Or tell me some possible solution installing another ROM / modem?
I am currently trying different modems and using the OmegaROM in my cousin's S4.
Related
I recently tried to downgrade my Galaxy S3 from Jelly Bean 4.1.2 to ICS 4.04 using Odin and a ROM file downloaded from Sammobile.
The installation was succesful and after doing a factory reset and clearing cache the phone booted up ok. It connected to my network provider for several seconds and then disconnected.
After several attempts at this process using different files, I noticed that the IMEI of my phone was no longer correct. At this point I thought I had bricked my phone by somehow corrupting the IMEI.
In an attempt to put it right, I reloaded Jelly Bean 4.1.2 and my phone now works fine again. Please can someone advise what I am doing wrong with this process and why the IMEI gets corrupted as this is obviously why the network rejects my phone when I install ICS.
If you would look here: http://forum.xda-developers.com/galaxy-s3/general/ref-galaxy-s3-modem-radio-collection-t1740061 you will found this link for ICS ROMs: https://www.wuala.com/UpInTheAir/SGS3/Modems/I9300/ICS/?key=n0KVwtIMZPE8 . From here, select CWM folder if you want to flash the modem via recovery, or the Odin one if you want to flash it with Odin. Choone one of the file, download it, and then flash it via the method you want.
QuickQuestion: Why would you wanna use ICS when it has been released 4.3 for our device, and 4.4 it is said to be released in the following weeks (Hope so! ). If you want, you can answer, if not, it'ss not a big problem
Thanks for the reply. Is this the reason my IMEI is corrupted when I flash a PDA from Sammobile? I am new to using Odin etc and followed the instructions on the website.
There are some features I liked in ICS that were removed in Jelly Bean, such as direct access to words in the custom dictionary and the 3 x 4 keypad that was removed in 4.3. I already downgraded from 4.3 to 4.1.2 but wanted to try ICS 4.04. So far I can install it but cannot get a network connection for more than a few seconds.
#EDIT: After further research this problem appears to be an issue with the phone's EFS data. I have now used EFS Professional to back up this important area. What I don't know is can I restore this backed up EFS data to correct the problem I'm having when I downgrade Jelly Bean 4.1.2 to ICS 4.04?
andyb1712 said:
Thanks for the reply. Is this the reason my IMEI is corrupted when I flash a PDA from Sammobile? I am new to using Odin etc and followed the instructions on the website.
There are some features I liked in ICS that were removed in Jelly Bean, such as direct access to words in the custom dictionary and the 3 x 4 keypad that was removed in 4.3. I already downgraded from 4.3 to 4.1.2 but wanted to try ICS 4.04. So far I can install it but cannot get a network connection for more than a few seconds.
#EDIT: After further research this problem appears to be an issue with the phone's EFS data. I have now used EFS Professional to back up this important area. What I don't know is can I restore this backed up EFS data to correct the problem I'm having when I downgrade Jelly Bean 4.1.2 to ICS 4.04?
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If you have a 16GB s3, u might want to keep JB, 16GB ICS S3 has the possibility for sudden death. But, i too am considering going back to ICS, Jellybean is a joke, it lags way more than ICS does. Trying to force the system to constantly render at 60FPS is hardware demanding and was probably a temporary approach. Its unfortunate that ICS ROMS are no longer available for download. Also, i doubt kitkat would be released for our phone.
My S3 is 16Gb and was originally shipped with Jelly Bean. I watched a Youtube video comparing ICS and Jelly Bean and ICS was faster responding in virtually every test, despite the guy doing it being pro Jelly Bean.
I don't know much about the 'sudden death' problem with ICS on 16Gb models but from what little I've read, I thought this was more of a hardware issue due to defective memory chips and/or main boards?
My S3 updated to Jelly Bean 4.3 last December and I wasn't happy because they had removed the 3x4 Samsung keypad that I like to use. I tried a number of different keypads from Play Store but in the end decided to downgrade to 4.1.2, which went without a hitch.
My attempts to do the same with ICS 4.04 did not go so well and I'm still not sure why the IMEI was corrupted or even more surprising, that it was corrected when I re flashed 4.1.2
andyb1712 said:
My S3 is 16Gb and was originally shipped with Jelly Bean. I watched a Youtube video comparing ICS and Jelly Bean and ICS was faster responding in virtually every test, despite the guy doing it being pro Jelly Bean.
I don't know much about the 'sudden death' problem with ICS on 16Gb models but from what little I've read, I thought this was more of a hardware issue due to defective memory chips and/or main boards?
My S3 updated to Jelly Bean 4.3 last December and I wasn't happy because they had removed the 3x4 Samsung keypad that I like to use. I tried a number of different keypads from Play Store but in the end decided to downgrade to 4.1.2, which went without a hitch.
My attempts to do the same with ICS 4.04 did not go so well and I'm still not sure why the IMEI was corrupted or even more surprising, that it was corrected when I re flashed 4.1.2
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Not sure exactly how the sudden death works, i just know it affects 16GB s3 variants. I know the video you are referring to, i watched the exact same one. I think most people got caught up in the hype of JB and forgot how good ICS was.
Havoc-X said:
Not sure exactly how the sudden death works, i just know it affects 16GB s3 variants. I know the video you are referring to, i watched the exact same one. I think most people got caught up in the hype of JB and forgot how good ICS was.
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The Youtube video made me laugh as it was supposed to encourage you to want the Jelly Bean upgrade, when all it did was make me want to run ICS even more! I tried a friend's Galaxy S2 with ICS the other day and it was smoother and faster responding than my S3.
I hope to have another go at getting it working but also I am concerned I probably came close to bricking my handset last time because I do not know enough about the process. This wouldn't be good as I still have another year on my network contract to go.
Do post here if you succeed in downgrading to 4.0.4 as I am also looking for it but it's not working
And best of luck
Unless you have a backup of your efs folder, from before firmware EMG4 then you cannot downgrade.
EFS format was changed at EMG4 to v2, earlier roms are incompatible with v2 and later roms incompatible with v1 so IMEI will be corrupt.
Sent from my GT-I9300 using Tapatalk
Thanks for the info.
My S3 was shipped with EMG4, so unfortunately I don't have any efs data that I can use with earlier ICS firmwares. I was trying in vain to load BLG8 but it just resulted in a corrupted IMEI and no network.
Unless there is some way of converting saved v2 efs data to the earlier format, then I will have to stick with the Android version I have.
Why are you not trying 4.3 or custom rom mate? My god if your phone is giving u problem u should try to tame it. Very smooth, the nb6 firmware. Or at least let yourself try a custom rom for instance temasek.
Sent from my GT-I9300 using XDA Premium 4 mobile app
I have tried the Official Samsung 4.3 release but didn't like that they removed the 3x4 Samsung Keypad, which I prefer to use. I've tried custom firmwares on my old phone (Galaxy Ace) but never had much success with installing them or getting things to work properly after.
My S3 is still under contract for another year and my skills in this area of modifying are beginner level at best, so I plan to do a lot more reading on here and a lot less messing around with the phone firmware until I know more about it.
andyb1712 said:
I have tried the Official Samsung 4.3 release but didn't like that they removed the 3x4 Samsung Keypad, which I prefer to use. I've tried custom firmwares on my old phone (Galaxy Ace) but never had much success with installing them or getting things to work properly after.
My S3 is still under contract for another year and my skills in this area of modifying are beginner level at best, so I plan to do a lot more reading on here and a lot less messing around with the phone firmware until I know more about it.
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Your phone lag is because of Samsung bloatwares, get rid of it and you would be fine. Temporarily suggestions would be hang on 4.12 and try greenify. U don't need root but root would give you he best out of it. Look up cf autoroot and begin your journey.
:thumbup:
Sent from my GT-I9300 using XDA Premium 4 mobile app
first of all I apologize if I posted this on a wrong sleection or whatever...
I have a Samsung Galaxy Grand i9080L and i resently found that my phone had an update but when i connected to kies it appeared to be none, nor via OTA. so i Downloaded it from Sammobile and flashed the rom using ODIN.
Now the problem is that when i updated to 4.2 my phone started to run really slow and i did a hard reset and deactivated some applications that didnt work properly but the phone still lags, less but does compared to when i had 4.1.
I dont want to go back to 4.1 because when i do i cant use any game because of a graphic problem that its now solved with 4.2 and some other bugs.
I've been trying to find a custom rom for my GT i9080L but i cannot find any.
Do you guys think i can use a Rom for the DUOS version (i9082) and install it with odin?
Any idea?
please help im kinda desperate because of the lack of suppor for this phone.
I realize that these are for the i9082L dual sim model : http://forum.xda-developers.com/galaxy-grand-duos/development
But there have been people in various forums reporting the CM or AOSP type roms run on their i9080l fine since the dual sim support for non Samsung roms are tricky to get working right anyway (example: http://forum.xda-developers.com/showpost.php?p=50659404&postcount=1123 , http://www.madboxpc.com/foro/topic/186437-guia-actualizar-galaxy-i9080l-de-422-custom-a-442-mod/ ). I'd be wary of trying any Samsung based 9082 roms because I have seen people saying that'll brick it (though probably just fixable via Odin).
Hello, I made a post here because of me unable to use my data or send texts or calls after flashing cyanogenmod then flashing modems. The third gentlemen to comment said that my efs partition was screwed up. So I want to know if anyone has any fixes for it without having to go the a samsung service center as he stated? I was debating on putting this on my S3 (SCH-R530U posting here since there is no section for my variant of the S3) but I'm not sure if that would fix it since my model number is SCH-R530 yet software says that it is the R530U so I'm unsure what effect that would have on my phone. Also I don't recall having the LK5 or LG1 modem on my phone prior to flashing cyanogenmod. Also, what would be recommended to backup before doing this so I don't completely lose everything? Thank you for any suggestions or answers!
Hi! Since you did not make a backup of your efs folder you are gsm/hspda/lte/sms/mms done for i'm afraid. First of, did you flash a CM version specifically for your device or a version for the s3 international/other variants?
vader20 said:
Hi! Since you did not make a backup of your efs folder you are gsm/hspda/lte/sms/mms done for i'm afraid. First of, did you flash a CM version specifically for your device or a version for the s3 international/other variants?
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I did indeed download the correct version of cyanogenmod for the Galaxy S3 for US Cellular (sadly)
I would try and flash the latest stock rom available from my carrier/country and if that doesn't fix it then i would search on xda/google if my situation happened to someone else before and take this as a last resort.
As always, if you still have warranty then try and flash latest stock rom available and unroot the device so that you can benefit from the warranty. Keep searching until you are sure that the above link is the only way. Best of luck to you!
SamsungMakesMeCry said:
Hello, I made a post here because of me unable to use my data or send texts or calls after flashing cyanogenmod then flashing modems. The third gentlemen to comment said that my efs partition was screwed up. So I want to know if anyone has any fixes for it without having to go the a samsung service center as he stated? I was debating on putting this on my S3 (SCH-R530U posting here since there is no section for my variant of the S3) but I'm not sure if that would fix it since my model number is SCH-R530 yet software says that it is the R530U so I'm unsure what effect that would have on my phone. Also I don't recall having the LK5 or LG1 modem on my phone prior to flashing cyanogenmod. Also, what would be recommended to backup before doing this so I don't completely lose everything? Thank you for any suggestions or answers!
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Its basicly a Verizon phone, you need to go there for support
Recently, I have a rooted Note 2 , which is the phone became not registered on network after updating 5.1.1.
I've returned to 4.1.2 for flashing Ariza Patch and BusyBox but nothing seems to work.
I did flash GT-N7100 Model ND3 for fixing it and I've tried a few other sims from different network, but it doesn't work either
This is the first time I've used Android OS so that it's little bit difficult for newbie as me
Anyone can solve it? Just help me
Thank you guys so muchhh!
Check you IMEI in device settings. This sometimes can be wiped out by flashing roms, that is the reason it is posted to back up your efs folder. Without a backup you may end up having to send it in for a new board.
So I got a new galaxy alpha (850F) which is an amazing phone by the way but i have a few questions
1) I noticed that sometimes the signal drops to 0 bars for a few seconds then comes back again, is that normal because of the metal frame or what ?
2)How much does the battery take to charge ?
3) I am still on Kitkat 4.4.4 and the lollipop OTA hasn't arrived where I live yet (I don't think it's coming anytime soon) so what's the best course of action, should I stay on kitkat ? Which official rom can I flash using ODIN ? Is there a toolkit for rooting and installing a custom recovery ?
If there are tutorials for these things I'll be thankful.
Hi Mazika2,
1) I have no idea and never experienced what you describe
2) For me battery charging takes about 1h - 1 1/2h with original charging plug (over USB on PC it takes much longer)
3) You can flash any 5.0.2 ROM via Odin.
Root 4.4.4: You can take Kingroot for example, Knox will not be tripped.
Root 5.0.2: http://www.skyneel.com/2014/09/root-samsung-galaxy-alpha-sm-g850f-by-simple-tutorial.html . Knox will be tripped.
Custom recovery: http://forum.xda-developers.com/galaxy-alpha/orig-development/recovery-twrp-2-8-clockworkmod-recovery-t2923587
Is there anything to reset knox like triangle away ?
I read a few threads about flashing stock firmware, what are modems and hidden.img ?
Which is better in terms of stability , battery, etc... kitkat or lollipop ?
And finally let's say I want to upgrade to stock lollipop using ODIN what are the steps to follow ?
sorry if these questions sound nooby .
Mazika2 said:
So I got a new galaxy alpha (850F) which is an amazing phone by the way but i have a few questions
1) I noticed that sometimes the signal drops to 0 bars for a few seconds then comes back again, is that normal because of the metal frame or what ?
2)How much does the battery take to charge ?
3) I am still on Kitkat 4.4.4 and the lollipop OTA hasn't arrived where I live yet (I don't think it's coming anytime soon) so what's the best course of action, should I stay on kitkat ? Which official rom can I flash using ODIN ? Is there a toolkit for rooting and installing a custom recovery ?
If there are tutorials for these things I'll be thankful.
Click to expand...
Click to collapse
1. Issues were noticed on this subject, mainly with 4G network. I changed to 3G and I hadn't more missed calls. I think the problem is more related to inconstant network signal than to the phone itself.
2. With the original adapter is really fast comparing with my old device. I never counted but something like one hour or less.
3. There are people who prefers Kitkat over Lollipop due to better responsiveness. Mine came already with Lollipop so I haven't comparison. For now, I don't have the need to root with custom rom's, the Alpha is superb as it is (except for the annoying touch screen issue...)
Flash
Can I flash a SM G850F firmware on a SMG850M?
Mazika2 said:
Is there anything to reset knox like triangle away ?
I read a few threads about flashing stock firmware, what are modems and hidden.img ?
Which is better in terms of stability , battery, etc... kitkat or lollipop ?
And finally let's say I want to upgrade to stock lollipop using ODIN what are the steps to follow ?
sorry if these questions sound nooby .
Click to expand...
Click to collapse
Knox can't be resetted once it is tripped! Keep that in mind. In terms of stability and battery I would say they are the same. It depends mainly on your daily usage of the phone.
Steps to follow upgrading your firmware with odin can be found here: http://www.pocketpc.ch/samsung-galaxy-s6-s6-edge-root-und-rom/226170-anleitung-flashen-firmware-odin-samsung-galaxy-s6-edge-sm-g920f-g925f.html
danieldp1990 said:
Can I flash a SM G850F firmware on a SMG850M?
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It's complicated, for two reasons I know of, probably more.
1) I'm not sure the chipsets in the F and the M are the same. I know, for example, that the A is Snapdragon and the M is Exynos. I think the F is Exynos, too, but I'm not positive. You'd need the same chipsets for it to work.
2) It's likely the F and the M have different modems, so if you flash F firmware on an M, you may end up corrupting your EFS folder and blacklisting your phone's IMEI on your carrier. You'd need to find out exactly what frequencies the F supports and make sure the M supports them, too. I've read there is a way around this by somehow re-loading two modem files from your phone's original firmware after installing the other phone's firmware, but I've not found step-by-step instructions that are simple enough for me to understand.
Even if those two issues are resolved, it's still dicey. I really want to find SM-G850T firmware and flash it to my SM-G850M, so we are in a similar boat. I can't even find someone who owns a SM-G850T, let alone the firmware. (I did find a question posted on another Site by an individual who said they own a SM-G850T. Unfortunately, half a dozen emails to this individual have remained unanswered.
so here is what I'm planning on doing
1) while on kitkat I'll root with kingroot without tripping knox to backup the EFS folder
2)flash official 5.0.2 using odin
3) try lollipop then decide whether to stay on it or downgrade to kitkat
I just want to know some things before doing the steps above:
1) what are modems and hidden.img in official firmwares ?
2)after rooting on kitkat, can i flash lollipop directly or do i have to flash official kitkat firmware to unroot then upgrade to kitkat ?
I don't know the answers to your questions: I'm even noobier than you!
I do know that when my SM-G850M upgraded to Lollipop, I HATED it. It ran slower and was choppy in the display animations, it cut battery life by at least a third (with no change in anything after wiping the cache), and I especially hated the new color scheme. So, I went back to KitKat. Had to do a Factory Reset to get the phone out of bootloop, but it was fine after that. EXCEPT, the Lollipop downloader reminder stayed on there and I was not able to stop the app or clear the data (those options in the Application Manager were grayed out. So, I flashed the SM-G850M with KitKat firmware from the Dominican Republic (Orange). I read somewhere that Orange was not planning on releasing Lollipop for their Alpha, so I figured this firmware would be Lollipop Downloader Reminder-Free. So far, so good.